摘要:

Adult male volunteers were fed for 5-day periods on diets consisting of 7.5 g carbohydrate/kg body weight/day and 1.0 g calcium caseinate/kg body weight/day. The carbohydrates used were D-glucose, low molecular weight fraction of glucose syrup, and intermediate molecular weight fraction of glucose syrup. At least 99.9 % of all carbohydrates were absorbed and metabolised as judged by faecal and urinary analyses. All diets tended to result in a decrease in fasting serum glucose levels. Glucose tolerance tests showed peak rises above fasting level in capillary blood in the order D intermediate molecular weight fraction of glucose syrup. All fasting serum cholesterol and phospholipid concentrations dropped substantially after 5 days. Fasting serum triglyceride levels rose on the D-glucose and low molecular glucose syrup fraction diet but fell on the intermediate molecular weight glucose syrup fraction diet. The percentage triglycerides and cholesterol in the total skin surface lipids showed the opposite trend. Each dropped most on the D-glucose diet, showed less change on the low molecular weight fraction of glucose syrup and rose substantially on the intermediate molecular weight fraction of glucose syrup. Total skin surface lipids, on the other hand, rose on the D-glucose and low molecular weight glucose syrup fraction diets, and dropped on the intermediate molecular weight glucose syrup fraction diet.

ISSN:0250-6807    

DOI:10.1159/000175702

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The effects of varying the dietary levels of ferrous sulfate or ferric orthophosphate on the efficiency of the conversion of dietary iron into hemoglobin iron, was evaluated with the anemic rat. Weanling male rats were made anemic by feeding a semipurified diet containing 8.4 mg iron/kg, and by bleeding. They were divided into nine groups so that hemoglobin levels and body weights were similar. The rats were fed the basal diet or the basal diet plus 12, 24, 36 and 48 mg iron/kg diet provided as ferrous sulfate or ferric orthophosphate. The rats were fed 10 g daily of the respective diets for 10 consecutive days. The efficiency of the conversion of dietary iron into hemoglobin iron was not significantly affected by dietary level of either iron salt. It was determined that ferric orthophosphate was 51 % as efficient as ferrous sulfate for hemoglobin regeneration in the anemic rat.

ISSN:0250-6807    

DOI:10.1159/000175703

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

Synthesis and breakdown of pyridoxal phosphate by erythrocytes were studied in subjects with oral lesions before and after treatment with riboflavin. In vivo conversion of pyridoxine to pyridoxal phosphate as well as in vitro synthesis of pyridoxal phosphate by erythrocytes were lower in subjects with lesions of the mouth and improved markedly after treatment with riboflavin. Erythrocyte phosphatase activity, with pyridoxal phosphate as substrate, was lower in riboflavin-deficient subjects and showed an increase after treatment with riboflavin.

ISSN:0250-6807    

DOI:10.1159/000175704

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

Prolonged feeding of chicks with raw soybean meal as the main protein source in the diet resulted in growth inhibition, pancreas enlargement, and increased content of pancreatic proteolytic enzymes. The effect of feeding with raw soybean meal as compared to heated soybean meal upon total intestinal enzymatic activities in chicks was tested. The tendency of chicks to overcome the effects of raw soybean meal is expressed mainly by the increase of biosynthesis and secretion of proteolytic enzymes in the pancreas.

ISSN:0250-6807    

DOI:10.1159/000175705

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

A 1-year follow-up study was undertaken in 53 women, 51-years old, selected from the population study of women in Gothenburg (1968–1969) on account of an impaired glucose tolerance or a subnormal early insulin response. A dietary interview was obtained initially as well as 1 year later. Initially, the women received dietary advice in order to improve their food habits in general, to exclude sucrose and decrease the consumption of fat in particular and, if overweight, to reduce. The women’s opinion of how well they had followed the dietary advice was tested against the prognosis of the interviewer and against changes in body weight, in the consumption of sucrose, and in the consumption of some selected foods. 8 women had had rather good food habits and a normal body weight from the beginning of the study. Of the remaining 45 women, the adherence to the dietary advice was regarded as successful in 42 %, while 33 % made some good efforts. Most of the successful women were overweight initially and half of them had made several re-visits (3–31) during the year. The 11 unsuccessful women were not convinced as to the necessity of changing their food habits, or they received no support from their families. The results indicate that the primary task in the efforts to make a subject follow dietary advice is to explain him why changes are needed, and what makes the food proposed superior. Besides, continuous re-visits may be needed. A medical reason for the reduction of overweight seemed to be the best motiv

ISSN:0250-6807    

DOI:10.1159/000175706

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The fraction of faecal radioactivity excreted after intravenous administration of 14C-labelled cholic acid decreased in most patients with ileopathy and bile salt malabsorption when the dietary daily fat content was reduced from 100 to 40 g. The decreased faecal cholic acid loss might be due to increased bile salt absorption and decreased emptying of the gall-bladder on the fat-reduced diet. A simplified method to determine the corrected 24-hour excretion of radiologically labelled bile salts is described.

ISSN:0250-6807    

DOI:10.1159/000175707

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The metabolic effect of ventromedial hypothalamic (VMH) lesions, which are known to cause hyperphagia and obesity, has been studied in rats kept on a controlled light and food regimen. The animals were sacrificed at 4 different times during the second postoperative day. A feeding-induced hypersecretion of insulin was found in the VMH-lesioned animals. It was accompanied by a marked hypoglycemia as compared to the control groups during the feeding period. The glycogen content of liver and diaphragm in the lesioned groups is increased as compared to the controls during the same period. The VMH-lesioned animals showed hypertriglyceridemia both in the fed and fasted state, whereas the postabsorptive plasma levels of free fatty acids and glycerol were decreased. An increased level of urea was observed in all lesioned groups. This is in accordance with the demonstrated protein catabolism which follows VMH lesions.

ISSN:0250-6807    

DOI:10.1159/000175708

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

The purpose of this note is to emphasize the significant effects of nutritional factors, in this case pantothenic acid, on growth and development of rat thymus. Low antibody titers against various infectious agents in pantothenic acid deficiency and skin graft tolerance in pyridoxine deficiency warrant an assessment of the effects of vitamins on the growth and development of the thymus and consequently on the immune response.

ISSN:0250-6807    

DOI:10.1159/000175709

出版商:S. Karger AG    

年代:1976

数据来源: Karger

摘要:

Iron-deficient rats were rehabilitated with diets supplying iron from white wheat bread, bread ash or ferrous sulfate as a standard. The relative biological value of iron in bread or its ash was greater when evaluated from red blood cell count than when estimated from hemoglobin concentration. Ash obtained by heating bread in a muffle furnace and reduced with hydrogen was more effective in stimulating blood cell production than could be accounted for by its iron content alone.

ISSN:0250-6807    

DOI:10.1159/000175710

出版商:S. Karger AG    

年代:1976

数据来源: Karger

ISSN:0250-6807    

DOI:10.1159/000175711

出版商:S. Karger AG    

年代:1976

数据来源: Karger